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Weather in Portrush for December 2025

Your guide to Portrush weather in December - trends and predictions

    Official Weather Alert ⚠️

  • Yellow Rain Warning - See hour by hour.

    • Temperatures

  • Until now, December 2025 in Portrush has been nearly identical to the historical average, with a temperature of 9.2 °C (showing only a slight deviation of 0.2 °C).

  • The forecast for the next days in Portrush predicts temperatures to be around 10 °C, close to the historical average.

  • In general, the average temperature in Portrush at the beginning of December is 9.1 °C. As the month progressed, temperatures tended to slightly increase, reaching an average of 9.6 °C by the end of December.

    • Rain 🌧️

  • Portrush experiences heavy rainfall in December, with over 20 rainy days and an average total precipitation 150.1 mm.

    • More

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
8
Dry days
Average rainy days
23
Rainy days
Average snowy days
0
Snow days
Average temperatures
10°/6°
Temperatures
Average wind speed
37 km/h
Avg max wind
Average humidity
80 %
Avg humidity

Portrush Weather December

Move between months or click on a day
November
January
Mon.Tue.Wed.Thu.Fri.Sat.Sun.
1
Patchy rain possible
11°
2
Overcast
8°
3
Moderate or heavy rain shower
8°
4
Moderate or heavy rain shower
8°
5
Moderate or heavy rain shower
9°
6
Moderate or heavy rain shower
10°
7
Moderate or heavy rain shower
10°
8
Overcast
9°
9
Sunny
10°
10
Sunny
8°
11
Sunny
8°
12
Overcast
6°
13
Weather Alert Patchy rain possible
11°
14
Weather Alert Moderate rain
13°
15
Weather Alert Patchy rain possible
8°
16
Partly cloudy
7°
17
Patchy rain possible
11°
18
Patchy rain possible
10°
19
Patchy rain possible
9°
20
Patchy rain possible
9°
21
Patchy rain possible
12°
22
Patchy rain possible
13°
23
Partly cloudy
7°
24
Patchy rain possible
8°
25
Moderate rain
9°
26
Partly cloudy
7°
27
Patchy rain possible
10°
28
Patchy rain possible
9°
29
Overcast
10°
30
Moderate or heavy rain shower
11°
31
Moderate rain
11°

Temperatures trend during December in Portrush

See the weather trend as well as the moving average line

December weather in Portrush day by day

Click on a date for more information
November January
Date Weather Temperatures Rain UV More
1 Dec. Patchy rain possible
Patchy rain possible
 11° /7° 1.1 mm 3
2 Dec. Overcast
Overcast
 8° /5° 1.7 mm 2
3 Dec. Moderate or heavy rain shower
Moderate or heavy rain shower
 8° /3° 4.6 mm 2
4 Dec. Moderate or heavy rain shower
Moderate or heavy rain shower
 8° /3° 9.1 mm 2
5 Dec. Moderate or heavy rain shower
Moderate or heavy rain shower
 9° /4° 9.4 mm 3
6 Dec. Moderate or heavy rain shower
Moderate or heavy rain shower
 10° /6° 14.1 mm 3
7 Dec. Moderate or heavy rain shower
Moderate or heavy rain shower
 10° /6° 16.1 mm 3
8 Dec. Overcast
Overcast
 9° /6° 0.3 mm 2
9 Dec. Sunny
Sunny
 10° /5° 5.9 mm 3
10 Dec. Sunny
Sunny
 8° /5° 0.3 mm 3
11 Dec. Sunny
Sunny
 8° /4° 3.2 mm 3
12 Dec. Overcast
Overcast
 6° /3° 0 mm 2
13 Dec. Patchy rain possible
Patchy rain possible
 11° /6° 1.5 mm 0
14 Dec. Moderate rain
Moderate rain
 13° /11° 6.1 mm 0
15 Dec. Patchy rain possible
Patchy rain possible
 8° /6° 0.8 mm 0.1
16 Dec. Partly cloudy
Partly cloudy
 7° /5° 0 mm 0
17 Dec. Patchy rain possible
Patchy rain possible
 11° /5° 4.5 mm 0
18 Dec. Patchy rain possible
Patchy rain possible
 10° /6° 1.3 mm 2
19 Dec. Patchy rain possible
Patchy rain possible
 9° /7° 1.2 mm 2
20 Dec. Patchy rain possible
Patchy rain possible
 9° /8° 4.6 mm 2
21 Dec. Patchy rain possible
Patchy rain possible
 12° /8° 3.2 mm 2
22 Dec. Patchy rain possible
Patchy rain possible
 13° /8° 3.7 mm 2
23 Dec. Partly cloudy
Partly cloudy
 7° /6° 0 mm 3
24 Dec. Patchy rain possible
Patchy rain possible
 8° /4° 0.1 mm 2
25 Dec. Moderate rain
Moderate rain
 9° /5° 5.4 mm 2
26 Dec. Partly cloudy
Partly cloudy
 7° /3° 0 mm 3
27 Dec. Patchy rain possible
Patchy rain possible
 10° /9° 0.5 mm 3
28 Dec. Patchy rain possible
Patchy rain possible
 9° /7° 0.3 mm 2
29 Dec. Overcast
Overcast
 10° /8° 0 mm 3
30 Dec. Moderate or heavy rain shower
Moderate or heavy rain shower
 11° /10° 15.5 mm 3
31 Dec. Moderate rain
Moderate rain
 11° /7° 7.5 mm 3
Next
Important Notice
Our weather forecast for Portrush in December is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Portrush forecast closer to your planned date for the most up-to-date weather information.
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Portrush in December - FAQ

What are the expected maximum and minimum temperatures in Portrush during December?
During December, expect a variety of temperatures with highs around 10° and lows near 6°, suitable for diverse activities and preferences.
How much rainfall should be expected in Portrush during December?
Significant rainfall exceeding 150.1 mm is expected in Portrush during December, occurring over more than 23 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Portrush during December?
The average wind speed in Portrush during December is 37 km/h, suggesting breezy to windy conditions, depending on your activities.

December rainfall patterns in Portrush

Explore the daily rainfall trends and prepare for Portrushs December weather 💧
Typically, Portrush has 23 rainy days in December with a total of 150.1 mm of rainfall.

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Location coordinates Where is Portrush?

Get accurate weather forecasts for Portrush, located at latitude 55.196 and longitude -6.649. Stay updated with localized weather information tailored for Portrush.

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